Add extern template instantiations of llvm::Calculate.

This should be a small build time improvement in general and fixes
the build on OS X with -DBUILD_SHARED_LIBS=ON.

The issue is that not all users are including GenericDomTreeConstruction.h,
causing undefined references when ld64 managed to hide the
linkonce_odr symbols.

llvm-svn: 201440

1 files changed, 10 insertions, 0 deletions

diff --git a/llvm/lib/IR/Dominators.cpp b/llvm/lib/IR/Dominators.cpp
index 8fa742f..baa6019 100644
--- a/llvm/lib/IR/Dominators.cpp
+++ b/llvm/lib/IR/Dominators.cpp
@@ -64,6 +64,16 @@ bool BasicBlockEdge::isSingleEdge() const {
 TEMPLATE_INSTANTIATION(class llvm::DomTreeNodeBase<BasicBlock>);
 TEMPLATE_INSTANTIATION(class llvm::DominatorTreeBase<BasicBlock>);
 
+#define LLVM_COMMA ,
+TEMPLATE_INSTANTIATION(void llvm::Calculate<Function LLVM_COMMA BasicBlock *>(
+    DominatorTreeBase<typename GraphTraits<BasicBlock *>::NodeType> &DT
+        LLVM_COMMA Function &F));
+TEMPLATE_INSTANTIATION(void llvm::Calculate<
+    Function LLVM_COMMA Inverse<BasicBlock *> >(DominatorTreeBase<
+    typename GraphTraits<Inverse<BasicBlock *> >::NodeType> &DT LLVM_COMMA
+                                                    Function &F));
+#undef LLVM_COMMA
+
 // dominates - Return true if Def dominates a use in User. This performs
 // the special checks necessary if Def and User are in the same basic block.
 // Note that Def doesn't dominate a use in Def itself!